MSD 84781 Street Pro-Billet w/Steel Gear, Ford 351W

The Street models share the same features as the small diameter models, plus feature a vacuum advance.

• Includes Steel Gear, compatible with hydraulic roller cams
• Must be used with an MSD Ignition Control
• Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)
• Nylon pads ensure smooth operation of the advance weights
• Advance weight pins are staked and tig welded to the plate
• Mechanical advance assembly can be locked out for crank trigger systems
• Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
• Polished steel shaft is QPQ coated and guided by a sealed ball bearing
• Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
• CNC machined billet aluminum housing and billet aluminum base
• Vacuum advance canister for improved economy (can be locked out)
• Easy-to-adjust mechanical advance with supplied springs and stop bushings
• Billet housing is 5/8” smaller in diameter than stock Ford distributors
• CARB E.O. Approved

Installation Instructions (PDF)